Refrigerating apparatus.



M. TIBBETTS. REFRIGERATING APPARATUS. APPLICATION FILED AUG. 19.1916.

Patented Mar. 11, 1919.

MILTON TIBBETTS, OF DETROIT, MICHIGAN,ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE ISKO COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

REFRIGERATING APPARATUS.

To all whom it may concern:

Be it known that I, MILTON TIBBETTS, a citizen of the United States, and resident of Detroit, Wayne county, State of Michigan, have invented certain new and useful Improvements in Refrigerating Apparatus, of which the following is a specification.

This invention relates to refrigerating apparatus, and particularly to apparatus of the compression type.

()ne of the objects of the invention is to improve upon the arrangement of various parts to obtain better cooling of the compressed refrigerant.

Another object of the invention is to provide a convenient and efficient arrangement of the component parts of the apparatus. Another object of the invention is to provide an incased condenser and blower means to increase the circulation of air through the casing to promote the condensing or cooling operation.

Other objects of the invention will appear I from the following description taken in connection with the drawings which form a part of this specification, and in which'the figure is a perspective view of a refrigerating apparatus embodying the invention.

Referring to the drawing, 10 represents a refrigerator box of any approved construction, having suitable food compartments with doors such as indicated at 11, and a refrigerating compartment 12 in which is arranged a refrigerating poil 13 of the required size.

A complete refrigerating unit, except the refrigerating coil 13 which is in the refrigerator box, is mounted at the side of the box where it is readily accessible, where the coldest air is obtainable for cooling the condenser, and whereby the top of the refrigerator box is left clear to be used as a shelf. Said unit is shown as principally supported by or connected to a support or shelf 14 bracketed to the box as at 15. Upon this shelf and at one end thereof is a compressor 16 and a motor 17 is arranged on the other end and drives the compressor as by a belt 18. A condenser 19 in the form of coiled piping i sarranged below the shelf andis,

covered by a casing 20 which is open at the bottom forming an inlet for the comparatively cold air that is found nearest the floor. The condenser is connectedto the compressor by a pipe 21 and to the refrig- Specification of Letters Patent.

Patented Mar. 11, 1919.

Application filed August 19, 1916. Serial No. 115,838.

erator coil 13 by a pipe 22 and an expansion valve 23 of suitable constructionf Also a connecting pipe 2i leads from the coil 13 to the inlet side of the compressor to complete the circulation of the refrigerant.

The upper part of the casing 20 is contracted somewhat and is connected to the inlet side of a blower or fan 25 of any desired form but shown as of the cirroco type. This blower is suspended beneath the shelf 14 and its outlet 26 opens through the shelf to direct the warmer air upwardly away from the condenser. A belt 27 connects the blower with the motor 17 so that the latter will drive the blower as well as the compressor.

The refrigerating apparatus above described is designed particularly for use with a refrigerant of low boiling point such as sulfur dioxid but parts of the apparatus, orthe whole, may be used with other fluids or gases.

With the sulfur dioxid, the compressor forces the refrigerant into the condenser pipes 19 where it is cooled by the air passing over them, the refrigerant is then expanded through the valve 23 into the coil 13 where it absorbs the heat from the compartment 12, and the compressor draws it through said coil and again compresses it, thus completing the continuous circulation of the refrigerant.

It will be understood that although but one form of'the invention has been shown and described, other forms may be used without departing from the spirit or scope of theinvention as defined by the claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:-

1. In a refrigerating apparatus, in combination, a refrigerator box, a support mounted at one side of the box, a compressor and motor therefor mounted on said support, a condenser coil arranged beneath the support, and ablower adapted to circulate air around said coil.

2. In a refrigerating apparatus, in combination, -a-re frigerator box, a shelf secured to the side of the refrigerator box below the top thereof, a motor and compressor mounted on the shelf, a condenser coil below the shelf, and a blower suspended from 3. In a refrigerating apparatus, in comblnation, a refrigerator box, a shelf secured to the side of the refrigerator box below the top thereof, a motor and compressor mounted on the shelf, a condenser coil below said shelf, a casing about said coil and having a bottom inlet opening, and a blower for drawing air through said casing. v

4. In a refrigerating apparatus, in combination, a refrigerator box, a shelf secured to the side of the refrigerator box below the top thereof, a motor and compressor mounted on the shelf, a condenser coil below said shelf, a casing about said coil and having a bottom inlet opening, a blower connected to said casing, and connections for driving the blower from said motor.

5. In a refrigerating apparatus, in-combination, a refrigerator box, a shelf secured to the side of the box, a condenser coil suspended from the shelf, a casing about the coil and having an air inlet opening, a blower connected to the casing, a motor and compressor, and connections for driving the blower and compressor from the motor.

In testimony whereof I affix my signature.

MILTON TIBBETTS. 

